Thermal management module

Abstract

The present invention discloses a thermal management module for controlling a coolant circuit, which includes a flow channel plate for circulating coolant and a control device for controlling the connection or disconnection between each pipeline in the flow channel plate and other pipelines. The flow channel plate includes multiple pipelines arranged in parallel with each other. One ends of all the pipelines are arranged on the same reference plane, and a pipeline port array arranged in a rectangular shape and / or a circular shape is formed on the reference plane, and is connected to the control device through the reference plane. The control device includes a valve core capable of moving relative to the housing. The housing is provided with a connection surface that matches the reference plane and has a flange docking structure. All pipelines are connected to the valve core through the connection surface, and the connection or disconnection between each pipeline and other pipelines is controlled by the movement of the valve core. The present invention simplifies the structure of the flow channel plate in the case of including multiple pipelines, improves the integration degree, and reduces the space occupation.

Description

Technical Field

[0001] The present invention relates to the technical field of automotive air conditioner manufacturing, and particularly to a thermal management module. Background Art

[0002] With the continuous improvement of society's requirements for clean energy, the penetration rate of new energy vehicles is also increasing. Along with the enthusiasm for purchasing new energy vehicles is the increasing concern for the range and safety of new energy vehicles. Therefore, the vehicle thermal management system has received more and more attention.

[0003] Traditional fuel vehicles involve very few components in the thermal management system, and the system functions are relatively single. While new energy vehicles are driven by electric energy, the thermal management system becomes even more important. In the existing electric vehicle thermal management design, the cooling and heating of the passenger compartment, the cooling and heating of the battery, and the cooling of the electric drive operate in three coolant circuits respectively.

[0004] In the prior art, in order to achieve the series-parallel connection between different circuits, multiple three-way and four-way water valves are used in the circuit, and different combinations of water valves are switched to complete the functions of different systems. The components in the system are all scattered and arranged at different positions in the front compartment of the vehicle, and then connected by pipelines. The pipelines and components are fixed to the vehicle with brackets. This not only results in a large number of products, but also occupies a large amount of space, ultimately causing a long system development cycle, high cost, complex system assembly, and inconvenient maintenance later.

[0005] Therefore, how to reduce the number of components in the vehicle thermal management system, achieve more system mode switches through reasonable planning of the connection mode, save the space of the whole vehicle, reduce the weight of the whole vehicle, and improve the space utilization efficiency of the product has become an urgent technical problem to be solved by those skilled in the art. Summary of the Invention

[0006] In view of the problem of excessive volume and low space utilization efficiency in the prior art, the present application provides a thermal management module.

[0007] To achieve the above object, the present invention discloses a thermal management module for controlling a coolant circuit; the coolant circuit includes a passenger compartment heating circuit, a battery circuit, a motor and electric control circuit, and a coolant heat exchange circuit.

[0008] The thermal management module includes a flow channel plate for circulating coolant, and a control device for controlling the connection or disconnection between each pipeline in the flow channel plate and other pipelines;

[0009] The flow channel plate includes a plurality of pipelines arranged parallel to each other;

[0010] One end of all the pipelines is arranged on the same reference plane, forming an array of pipeline ports arranged in a rectangular shape and / or a circular shape on the reference plane, and connecting to the control device through the reference plane;

[0011] The control device includes a valve core that can move relative to the housing;

[0012] The housing is provided with a connection surface that matches the reference plane and has a flange docking structure. All the pipelines are connected to the valve core through the connection surface, and the connection or disconnection between each pipeline and other pipelines is controlled by the movement of the valve core.

[0013] The application of the present invention simplifies the flow channel plate structure in the case of multiple pipelines, and integrates the connection ends between all pipelines and the control device on a reference plane, improving the integration degree, reducing the space occupation, reducing the connecting pipelines, reducing the installation joints at the client side, reducing the vehicle fixed brackets, and is convenient to implement, easy to install and maintain, reducing the production and manufacturing cost, reducing the development cycle and cost, and can also realize various system functions of the thermal management system, with a platform design, which is more conducive to the promotion of the product.

[0014] The present invention is superior to the prior art in terms of the number of parts and processing technology, etc., with lower cost and simpler processing.

[0015] Preferably, the nine pipelines form a rectangular array of three rows and three columns on the reference plane.

[0016] More preferably, the pipeline corresponding to the first column of the second row of the rectangular array is used as the first flow channel;

[0017] The pipeline corresponding to the first column of the third row of the rectangular array is used as the second flow channel;

[0018] The first flow channel and the second flow channel are respectively connected to the outlet and inlet of the passenger compartment heating circuit in the coolant circuit through corresponding external connecting pipes;

[0019] The first flow channel and the second flow channel are connected through an internal connecting pipe provided on the flow channel plate;

[0020] The two external connecting pipes of the first flow channel and the second flow channel both extend outward along the vertical direction of the third row of the rectangular array, and the distance from the external connecting pipe of the second flow channel to the reference plane is less than the distance from the external connecting pipe of the first flow channel to the reference plane.

[0021] More preferably, the passenger compartment heating circuit in the coolant circuit includes a heating water pump, an indirect condenser, a water heating PTC, and a heater core connected in series.

[0022] More preferably, the pipeline corresponding to the second row and the second column of the rectangular array serves as the third flow channel; the pipeline corresponding to the third row and the second column of the rectangular array serves as the fourth flow channel;

[0023] The third flow channel and the fourth flow channel are respectively connected to the outlet and the inlet of the battery loop in the coolant loop through the corresponding external connection pipes;

[0024] The external connection pipe of the third flow channel extends outward along the vertical direction of the first column of the rectangular array from the outside of the connection point of the first flow channel and the corresponding external connection pipe;

[0025] The external connection pipe of the fourth flow channel extends outward along the vertical direction of the third row of the rectangular array.

[0026] More preferably, the battery loop in the coolant loop includes a battery water pump.

[0027] More preferably, the pipeline corresponding to the third row and the third column of the rectangular array serves as the fifth flow channel; the pipeline corresponding to the first row and the second column of the rectangular array serves as the sixth flow channel;

[0028] The fifth flow channel and the sixth flow channel are respectively connected to the outlet and the inlet of the coolant heat exchange loop in the coolant loop through the corresponding external connection pipes;

[0029] The external connection pipes of the fifth flow channel and the sixth flow channel both extend outward along the vertical direction of the first row of the rectangular array.

[0030] More preferably, the coolant heat exchange loop in the coolant loop includes a serially connected battery cooler.

[0031] More preferably, the two pipelines corresponding to the first row and the first column of the rectangular array and the first row and the third column of the rectangular array are communicated through the corresponding internal connection pipes and serve as the seventh flow channel;

[0032] The pipeline corresponding to the second row and the third column of the rectangular array serves as the eighth flow channel;

[0033] The seventh flow channel and the eighth flow channel are respectively connected to the outlet and the inlet of the motor and electronic control loop in the coolant loop through the corresponding external connection pipes;

[0034] The external connection pipe of the seventh flow channel extends outward along the vertical direction of the third column of the rectangular array;

[0035] The external connection pipe of the eighth flow channel extends outward along the vertical direction of the third column of the rectangular array and is located between the external connection pipe of the fifth flow channel and the reference plane;

[0036] The inline pipe between the two pipes corresponding to the first column and the first row of the rectangular array and corresponding to the first row and the third column of the rectangular array is located outside the sixth flow channel.

[0037] More preferably, in the coolant circuit, the motor and electronic control circuit includes an electrically driven water pump, a motor, an electronically controlled constant temperature device, and a low-temperature radiator connected in series;

[0038] A bypass pipe with a proportional valve is connected in parallel to the low-temperature radiator, and the proportional valve is used to distribute the flow rate of the corresponding coolant.

[0039] The concept, specific structure and technical effects of the present invention will be further described below in conjunction with the drawings to fully understand the purpose, features and effects of the present invention. Description of the Drawings

[0040] Figure 1 Exploded structure schematic diagram showing an embodiment of the present invention.

[0041] Figure 2 Structure schematic diagram of the reference plane in an embodiment of the present invention.

[0042] Figure 3 Longitudinal sectional structure schematic diagram of the first column in the rectangular array in an embodiment of the present invention.

[0043] Figure 4 Longitudinal sectional structure schematic diagram of the first row in the rectangular array in an embodiment of the present invention.

[0044] Figure 5 Longitudinal sectional structure schematic diagram of the second column in the rectangular array in an embodiment of the present invention.

[0045] Figure 6 Longitudinal sectional structure schematic diagram of the second row in the rectangular array in an embodiment of the present invention.

[0046] Figure 7 Longitudinal sectional structure schematic diagram of the third row in the rectangular array in an embodiment of the present invention.

[0047] Wherein, 1, pipe; 2, control device; 3, flow channel plate; 4, external connection pipe; 5, inline pipe; 6, first flow channel; 7, second flow channel; 8, third flow channel; 9, fourth flow channel; 10, fifth flow channel; 11, sixth flow channel; 12, seventh flow channel; 13, eighth flow channel; 14, battery water pump; 15, indirect condenser; 16, battery cooler; 17, electrically driven water pump; 18, heating water pump; 19, first temperature sensor; 20, second temperature sensor; 21, third temperature sensor; 22, electronic expansion valve; 23, temperature and pressure sensor. Detailed Description of the Invention

[0048] Embodiment

[0049] As Figure 1 And Figure 2 As shown, a thermal management module is used to control a coolant circuit; the coolant circuit includes an occupant compartment heating circuit, a battery circuit, an electric motor and electronic control circuit, and a coolant heat exchange circuit; characterized in that: it includes a flow channel plate 3 for flowing coolant, and a control device 2 for controlling the connection or disconnection between each pipeline 1 in the flow channel plate 3 and other pipelines 1;

[0050] The flow channel plate 3 includes a plurality of pipelines 1 arranged in parallel with each other;

[0051] One ends of all the pipelines 1 are arranged on the same reference plane, and a pipeline port array arranged in a rectangular shape and / or a circular shape is formed on the reference plane, and is connected to the control device 2 through the reference plane;

[0052] The control device 2 includes a valve core capable of moving relative to the housing;

[0053] The housing is provided with a connection surface that matches the reference plane and has a flange docking structure. All the pipelines 1 are connected to the valve core through the connection surface, and the connection or disconnection between each pipeline 1 and other pipelines 1 is controlled by the movement of the valve core.

[0054] The present invention integrates the flow channel plate 3 in the case of including a plurality of pipelines 1, integrates the connection ends between all the pipelines 1 and the control device 2 with a valve core on a reference plane, and is connected to the control device 2 through a flange docking structure, which not only makes more full use of space, but also makes it more convenient to maintain various functional components and the control device.

[0055] The application of the present invention simplifies the flow channel plate structure in the case of including a plurality of pipelines, and integrates the connection ends between all the pipelines and the control device on a reference plane, improves the integration degree, reduces the space occupation, reduces the connecting pipelines, reduces the installation joints at the client side, reduces the vehicle fixed brackets, and is easy to implement, convenient for installation and maintenance, reduces the production and manufacturing cost, reduces the development cycle and cost, and can also realize various system functions of the thermal management system, platform design, which is more conducive to the promotion of products.

[0056] Compared with the prior art, in which the flow channel plate that needs to be synthesized from more than 2 plates needs to adopt processes such as hot plate welding, infrared welding or laser welding, or adopt the form of adding a sealing gasket in the middle, the present invention no longer requires a sealing structure and process.

[0057] In some embodiments, nine pipelines 1 form a three-row and three-column rectangular array on the reference plane.

[0058] As Figure 3As shown, in some embodiments, the pipeline 1 corresponding to the first column of the second row of the rectangular array serves as the first flow channel 6;

[0059] The pipeline 1 corresponding to the first column of the third row of the rectangular array serves as the second flow channel 7;

[0060] The first flow channel 6 and the second flow channel 7 are respectively connected to the outlet and inlet of the passenger compartment heating circuit in the coolant circuit through the corresponding external connection pipes 4;

[0061] The first flow channel 6 and the corresponding second flow channel 7 are connected through the internal connection pipe 5 provided on the flow channel plate 3;

[0062] The two external connection pipes 4 of the first flow channel 6 and the second flow channel 7 both extend outward along the vertical direction of the third row of the rectangular array, and the distance from the external connection pipe 4 of the second flow channel 7 to the reference plane 3 is less than the distance from the external connection pipe 4 of the first flow channel 6 to the reference plane 3.

[0063] In some embodiments, the passenger compartment heating circuit in the coolant circuit includes a serially connected heating water pump 18 and an indirect condenser 15.

[0064] And series interfaces are left for the water heating PTC and the heater core in the vehicle.

[0065] The heating water pump 18 is located at the outlet of the first flow channel 6 and is used to provide power for the circulation of the coolant in the circuit.

[0066] The indirect condenser 15 is not directly connected to any interface of the flow channel plate 3. The flow channel plate 3 only provides a mounting surface for mounting the indirect condenser 15, and the indirect condenser 15 is an optional part.

[0067] When it is necessary to exchange heat between the coolant in the circuit and the refrigerant in another circuit through the indirect condenser 15, the indirect condenser 15 is installed on the flow channel plate 3, and then the outlet of the heating water pump 18 and the inlet of the indirect condenser 15 are connected through a rubber hose.

[0068] When the indirect condenser 15 is not needed, the indirect condenser 15 is not installed on the flow channel plate 3.

[0069] As Figure 6 shown, in some embodiments, the pipeline 1 corresponding to the second column of the second row of the rectangular array serves as the third flow channel 8; the pipeline 1 corresponding to the second column of the third row of the rectangular array serves as the fourth flow channel 9;

[0070] The third flow channel 8 and the fourth flow channel 9 are respectively connected to the outlet and inlet of the battery circuit in the coolant circuit through the corresponding external connection pipes 4;

[0071] The external connection pipe 4 of the third flow channel 8 extends outward along the vertical direction of the first column of the rectangular array from the outside of the connection point of the first flow channel 6 and the corresponding external connection pipe 4;

[0072] The external connection pipe 4 of the fourth flow channel 9 extends outward in the vertical direction of the third row of the rectangular array.

[0073] In some embodiments, the battery circuit in the coolant circuit includes a battery water pump 14.

[0074] The battery water pump 14 is located at the outlet of the third flow channel 8 and is used to provide power for the circulation of the coolant in the circuit.

[0075] Such as Figure 5 and Figure 7 As shown, in some embodiments, the pipeline 1 corresponding to the third column of the third row of the rectangular array serves as the fifth flow channel 10; the pipeline 1 corresponding to the second column of the first row of the rectangular array serves as the sixth flow channel 11;

[0076] The fifth flow channel 10 and the sixth flow channel 11 are respectively connected to the outlet and inlet of the coolant heat exchange circuit in the coolant circuit through the corresponding external connection pipes 4;

[0077] The external connection pipes 4 of the fifth flow channel 10 and the sixth flow channel 11 both extend outward in the vertical direction of the first row of the rectangular array.

[0078] In some embodiments, the coolant heat exchange circuit in the coolant circuit includes a series-connected battery cooler 16.

[0079] The battery cooler 16 is located between the fifth flow channel 10 and the sixth flow channel 11. The outlet of the fifth flow channel 10 is communicated with the inlet of the battery cooler 16, and the outlet of the battery cooler 16 is communicated with the inlet of the sixth flow channel 11.

[0080] The function of the battery cooler 16 is to exchange heat between the coolant in the circuit and the refrigerant in another circuit.

[0081] Such as Figure 4 As shown, in some embodiments, the two pipelines 1 corresponding to the first column of the first row of the rectangular array and the third column of the first row of the rectangular array are connected through the corresponding internal connection pipes 5 and then serve as the seventh flow channel 12;

[0082] The pipeline 1 corresponding to the third column of the second row of the rectangular array serves as the eighth flow channel 13;

[0083] The seventh flow channel 12 and the eighth flow channel 13 are respectively connected to the outlet and inlet of the motor and electronic control circuit in the coolant circuit through the corresponding external connection pipes 4;

[0084] The external connection pipe 4 of the seventh flow channel 12 extends outward in the vertical direction of the third column of the rectangular array;

[0085] The external connection pipe 4 of the eighth flow channel 13 extends outward in the vertical direction of the third column of the rectangular array and is located between the external connection pipe 4 of the fifth flow channel 10 and the reference plane 3;

[0086] The inline pipe 5 between the two pipelines 1 corresponding to the first column of the first row of the rectangular array and the third column of the first row of the rectangular array is located outside the sixth flow channel 11.

[0087] In some embodiments, the motor and electronic control circuit in the coolant circuit includes a series-connected electric drive water pump 17, a motor, an electronic control constant temperature device, and a low-temperature radiator.

[0088] The electric drive water pump 17 is located at the outlet of the seventh flow channel 12 and is used to provide power for the circulation of the coolant in the circuit.

[0089] The low-temperature radiator is connected in parallel with a bypass pipeline with a proportional valve, and the proportional valve is used to distribute the corresponding coolant flow rate.

[0090] As Figure 1 shown, in some embodiments, the present invention further includes a first temperature sensor 19, a second temperature sensor 20, a third temperature sensor 21, an electronic expansion valve 22, and a temperature and pressure sensor 23.

[0091] Among them, the first temperature sensor 19 is located at the outlet of the battery water pump 14 and is used to monitor the temperature of the coolant in the circuit.

[0092] The second temperature sensor 20 is located at the outlet of the refrigerant circuit of the battery cooler 16 and is used to monitor the temperature of the refrigerant in the circuit.

[0093] The third temperature sensor 21 is located at the water outlet of the electric drive water pump 17 and is used to monitor the temperature of the coolant in the circuit.

[0094] The electronic expansion valve 22 is located at the inlet of the refrigerant circuit of the battery cooler 16 and is used to adjust the flow rate and pressure of the refrigerant in the circuit.

[0095] The temperature and pressure sensor 23 is located at the outlet of the refrigerant circuit of the indirect condenser 15 and is used to monitor the temperature and pressure of the refrigerant in the circuit.

[0096] The preferred specific embodiments of the present invention have been described in detail above. It should be understood that those of ordinary skill in the art can make many modifications and variations based on the concept of the present invention without creative work. Therefore, all technical solutions that can be obtained by those skilled in the art in the technical field of the present invention through logical analysis, reasoning, or limited experiments based on the concept of the present invention on the basis of the prior art should be within the protection scope determined by the claims.

Claims

1. A thermal management module for controlling a coolant circuit; the coolant circuit includes a passenger compartment heating circuit, a battery circuit, a motor and electronic control circuit, and a coolant heat exchange circuit; characterized in that: It includes a flow channel plate (3) for circulating coolant, and a control device (2) for controlling the connection or disconnection between each pipeline (1) in the flow channel plate (3) and other pipelines (1); The flow channel plate (3) includes a plurality of pipelines (1) arranged in parallel with each other; One ends of all the pipelines (1) are arranged on the same reference plane, and a pipeline port array arranged in a rectangular shape and / or a circular shape is formed on the reference plane, and is connected to the control device (2) through the reference plane; The control device (2) includes a valve core capable of moving relative to the housing; The housing is provided with a connection surface that matches the reference plane and has a flange docking structure, and all the pipelines (1) are connected to the valve core through the connection surface, and the connection or disconnection between each pipeline (1) and other pipelines (1) is controlled by the movement of the valve core; Nine pipelines (1) form a three-row and three-column rectangular array on the reference plane; The pipeline (1) corresponding to the first column of the second row of the rectangular array is used as the first flow channel (6); The pipeline (1) corresponding to the first column of the third row of the rectangular array is used as the second flow channel (7); The first flow channel (6) and the second flow channel (7) are respectively connected to the outlet and inlet of the passenger compartment heating circuit in the coolant circuit through corresponding external connection pipes (4); The first flow channel (6) is communicated with the corresponding second flow channel (7) through an internal connection pipe (5) provided in the flow channel plate (3); The two external connection pipes (4) of the first flow channel (6) and the corresponding second flow channel (7) both extend outward along the vertical direction of the third row of the rectangular array, and the distance between the external connection pipe (4) of the second flow channel (7) and the reference plane (3) is less than the distance between the external connection pipe (4) of the first flow channel (6) and the reference plane (3).

2. The thermal management module according to claim 1, wherein, The passenger compartment heating circuit in the coolant circuit includes a heating water pump (18) and an indirect condenser (15) connected in series.

3. The thermal management module according to claim 1, characterized in that, The pipeline (1) corresponding to the second column of the second row of the rectangular array is used as the third flow channel (8); the pipeline corresponding to the second column of the third row of the rectangular array is used as the fourth flow channel (9); The third flow channel (8) and the fourth flow channel (9) are respectively connected to the outlet and inlet of the battery circuit in the coolant circuit through corresponding external connection pipes (4); The external connection pipe (4) of the third flow channel (8) extends outward along the vertical direction of the first column of the rectangular array from the outside of the connection point between the first flow channel (6) and the corresponding external connection pipe (4); The external connection pipe (4) of the fourth flow channel (9) extends outward along the vertical direction of the third row of the rectangular array.

4. The thermal management module according to claim 3, characterized in that The battery circuit in the coolant circuit includes a battery water pump (14).

5. The thermal management module according to claim 4, characterized in that, The pipeline (1) corresponding to the third column of the third row of the rectangular array is used as the fifth flow channel (10); the pipeline corresponding to the second column of the first row of the rectangular array is used as the sixth flow channel (11); The fifth flow channel (10) and the sixth flow channel (11) are respectively connected to the outlet and the inlet of the coolant heat exchange circuit in the coolant circuit through the corresponding external connection pipes (4); The external connection pipes (4) of the fifth flow channel (10) and the sixth flow channel (11) both extend outward along the vertical direction of the first row of the rectangular array.

6. The thermal management module according to claim 5, characterized in that, The coolant heat exchange circuit in the coolant circuit includes a battery cooler (16) connected in series.

7. The thermal management module according to claim 5, wherein, Two pipes (1) corresponding to the first column of the first row of the rectangular array and corresponding to the third column of the first row of the rectangular array are communicated through the corresponding internal connection pipes (5) and used as the seventh flow channel (12); The pipe (1) corresponding to the third column of the second row of the rectangular array is used as the eighth flow channel (13); The seventh flow channel (12) and the eighth flow channel (13) are respectively connected to the outlet and the inlet of the motor and electronic control circuit in the coolant circuit through the corresponding external connection pipes (4); The external connection pipe (4) of the seventh flow channel (12) extends outward along the vertical direction of the third column of the rectangular array; The external connection pipe (4) of the eighth flow channel (13) extends outward along the vertical direction of the third column of the rectangular array and is located between the external connection pipe (4) of the fifth flow channel (10) and the reference plane (3); The internal connection pipe (5) between two pipes (1) corresponding to the first column of the first row of the rectangular array and corresponding to the third column of the first row of the rectangular array is located outside the sixth flow channel (11).

8. The thermal management module according to claim 7, characterized in that, The motor and electronic control circuit in the coolant circuit includes an electric drive water pump (17) connected in series.

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